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(MofleL) C. G. HAYNES.

' MILK COOLER No. 247,191. Patented Sept. 20,1881.

I MIM N, PETERS. Pholu-Liim n ier. Washington. D. C.

UNITED STATES PATENT OEEIcE.

OLINTON O. HAYNES, OF WILMINGTON, VERMONT.

MILK-COOLER.

SPECIFICATION forming part of Letters Patent No. 247,191, dated September 20, 1881.

Application filed April 21, 1881. (ModeL) nearly to their tops in water so cold that the sudden and continued lowering of the temperature shall cause the cream speedily and effectually to rise to the surface, and, further than that, to maintain, even without the use of ice, a constant low temperature over and around the cooler by means of evaporating water.

The accompanying drawings illustrate the invention.

Figure 1 is a transverse vertical section'ot' the cooler. Fig. 2 is a plan view of the same. Fig. 3 is a vertical section through the discharge-opening in the water-vessel. Fig. 4: is a horizontal section of same on lineg y of Fig. 3. Fig. 5 is an enlarged sectional view, showing a part of one of the milk-cans and the ventilator immediately above it. Fig. 6 is a section, showing the relation of the U-shaped partition to the receiving pan and case.

A is a case, of wood or other suitable material, preferably of cylindrical shape, formed with a bottom, the inner surface of which is conical or concave, so that the surface will slope downward toward the axis or vertical center. Beneath said bottom is an annular flange, serving as a base, and forming, when tube 1) is made large, and forms a stopper or hollow valve, which has attached to it a tube,

' til the lugs engage said clips.

g g, which rises within said vessel B nearly to its conical cover. The tube 9 9 serves the purpose of an overflow, to facilitate the discharge of water when it has reached a maximum point, and also as a shaft for the supply of fresh air to the space beneath the case A.

The tube 9 g may pass through the cover of the water-vessel, if deemed best, to take a supply of air directly from the outside, in which case, however, it willbe necessary to perforate the same at the maximum high-water point within said cover.

The water-vessel B is provided near its upper edge with an annular flange, d, which rests or bears, when said vessel is in position, upon the upper edge of the case, said flange being bent down neatly over the same. The diameter of the water-vessel being less than the inner diameter of the case A, said vessel, when suspended by its flange upon said case, forms an annular air-space about the surface of said water-vessel, as a protection against the influences of theoutside atmosphere. Within the vessel B is a diaphragm, H, supported upon lugs J, fixed to the sides of said vessel, provided with one or more openings to receive the cans O to contain milk to be cooled.

The milk-cans O are preferably conical in shape, and of a length nearly equal to depth of the water-vessel. Small lugs i are fixed to said cans, which fit, when the cans are in position, under clips j, attached to the upper surface of the diaphragm. H. The cans are locked to place by rotating them about their axes un- The valve-tube b has extending from it upward a rod, f, within reach, by which said valve-tube may be lifted when it is desirable to exhaust the vessel B of its water, and when said vessel is so emptied the sloping form of its bottom facilitates the discharge, cleaning said vessel at the same time.

The cover of the Water-can, made somewhat convex, fits closely over said can. There is in said cover over each milk-can a funnel-shaped ventilator, N, the small end of the ventilator passing up above the surface of the cover and protected by wire-gauze orits substitute. This, by the circulation of air through the bottom of the case and can, and up the tube inside the can, as described, draws oif the animal odor,?

as it is called, of the milk,without a possibility of any impurity of air or dust entering.

On the top of the cover is a cup, G, for holding water for a purpose hereinafter described.

As a prime object in my devices is to keep the milk as cool as possible all the time, and as the rapid evaporation of moisture on the outside has the greatest tendency to this end, I use the following device to accomplish it.

I envelop the whole case with a jacket of.

muslin, L, or any suitable textile material. This is made with an additional band or strip, M, sewed around near the top by its lower edge and caught up loosely to form a pocket or series of pockets around the top to catch and partially retain the water which runs over the top or out of the cup on the cover, or which may be dashed on, the inner upper edge of the jacket being perforated to admit more readily the passage of water from said pockets downward. The cover of the can is similarly enveloped with a jacket, K, and attached to this jacket is a number of strips of cloth, 0, or filaments of any textile character, by one end, while the other ends are immersed in the cup G, filled with water placed on the cover. By this device the water is by capillary attraction drawn out of the cup and diffused through the jacket on top and around the side of the case, and I am thus enabled to keep it constantly moist, an unceasin g evaporation and consequent cooling being maintained.

The case A is set in a receiving-pan, D, made somewhat larger than the case, having an outflow, E, 011 the front side, through which the water passes out into a basin, F, made with a sloping side, while the side oppositeis cut down a little at the top to allow sawdust and dirt accumulating from washing the ice used in the Water-can to pass down the inclined side of the basin and be washed out. This is assisted by a false or removable front side, 9, a few inches within the real side of the basin, and which is cut away on the under side to allow the sawdust and dirt to flow under it and up between the two and out over the top.

The receiving-pan D has in it a U-shaped partition, D, its apex being far enough in front of the center of the pan to receive the water from the waste-pipe of the water-can, its sides being spread and extending back to the outer and rear sides of the pan, where they are cut away sufficiently to allow the Water to flo'w over them and around in the pan, where it discharges into the basin for washing the ice.

If running water is not used the flexible tube 0, attached to the pipe leading from the watercan back of the discharge-pipe, may be detached and the pipe closed.

Ice may be placed in the water-can loosely, or in a receptacle for the purpose, perforated so as to come in contact with the water or in any way to reduce the temperature. I

My object is to place the freshly-drawn milk where it shall quickly cool, the cream to rise as speedily as possible, the animal odor to pass directly away, the milk and risen cream to be kept constantly cool, and all consistent with the most perfect cleanliness, purity of air, con venience of handling, and freedom from any disturbing influences of external odors, dust, or meteorological changes.

It will be observed that the U-shaped partition D does not rise to the height of the under surface of the case A. Consequently an air-space is left above the water flowing downward from the water-vessel by way of the space inclosed within said partition. The water passes outside of the case A through openings provided in the flange of the said case, and, as has been previously said, over the partition D at its intersections with the receiving-pan D. The case A fits upon the bottom of the said receiving-pan with a close watertight joint, so that the water flowing from the water-vessel is excluded from the air-space beneath the case, except within the U-shaped inclosure formed by the partition D. The circulation of air from the outside through the ventilators N, tubes 9 g b in the space beneath the vessel A, and about the space surrounding the water-vessel, is slow, though constant, as it enters and exits through the ventilators N by way of tube g.

I do not claim that I have any circulation of air within these spaces beyond what is produced by a natural tendency to equilibrium between the atmosphere inclosed and that on the outside of the cooler; but this is sufficient to answer the purpose intended by my arrangement.

What I claim in a milk-cooler is 1. The water-vesselB, provided with the conical top having conical ventilators described, and the cup G, fixed centrally thereon, in combination with the jackets L and K and the tapes 0, as and for the purpose set forth.

2. The vessel B and case A, in combination with valve-tube b and tubes 9 and g, as and for the purpose specified.

3. The pan D, provided with the U-shaped partition D, adapted to hold discharge-water within the compass of said partition and outside of vessel A, and having attached to it by tube E an icewashin g vessel, F, provided with a sloping bottom and an adjustable partition, 9, whereby the water from said vessel B may be utilized to wash and cleanse the ice to be used in cooling the milk, as and for the purpose set forth.

4. In combination with the vessel A, the jacket L, provided with annular pockets and perforations f, the former to receive and the latter to dispense water to the surface of the cooler, substantially as and for the purpose set forth.

5. In a milk-cooling device, the jacket L, provided with pockets and perforations f, adapted to fit over the case A, as and for the purpose set forth.

CLINTON O. HAYNES.

Witnesses:

JOHN N ORRIS, Gno. E. HAYNES. 

